Refuse collecting device



April 12, 1960 Filed Aug. 25, 1956 H. LINDE REFUSE COLLECTING DEVICE 2Sheets-Sheet 1 April 12, 1960 H. LINDE REFUSE COLLECTING DEVICE 2Sheets-Sheet 2 Filed Aug. 23, 1956 INVENTOR.

2,932,417 r Patented Apr. 12, 1960 2,932,417 REFUSE COLLECTING DEVICEHilding Linde, Kalmar, Sweden Application August 23, 1956, Serial No.605,753

3 Claims. 01. 214-303 The invention relates to a refuse collectingdevice, comprising a vehicle with a refuse collecting container anddustbins to bedischarged into the container. Such vehicles are usuallyprovided wtih elevators with special tion is bent upwards to engage onshank of the U-formed carriages running in guide rails, and a dustbinplaced on or coupled together therewith can in this way be hoisted upand tipped together with the'carriage. l 3

. An object of the invention is to provide a hoisting device for thedustbins without the use of any such carriage. Y

Another object of the invention is to provide a hoisting device, bymeans of which the dustbin can be connected with the hoisting devicewhen standing on the ground and thus without any trying work for manuallifting of the dustbin.

A further object of the invention is to design a hoisting device of asimple and cheap but efiective construction.

The invention will be more clearly described hereinafter, referencebeing made to the accompanying drawing, in which:

Figure 1 is a side elevation of the rear portion of a refuse collectingvehicle with a hoisting device according to one form of the invention,and

Figure 2 is an elevation of a dustbin connected with an elevator rope.

Figure 3 is an elevational view of the front shutter.

The vehicle 1 comprises a refuse collecting container 4, into whichrefuse is forced by means of a conveyor screw within a casing 3, and therefuse is introduced into an emptying hood with side walls 2 mounted onthe rear wall of the container, from which hood the refuse drops ontothe screw. Between the side walls 2 a front shutter 5 is mountedswingably around an axle 6 near its lower edge. In the closed positionthe shutter rests against the flanges of two angle iron frame portions8, and the shutter may be swung inwards against the action of two springdevices 7 located one at each side close to the said walls 2. Thesedevices comprise a spring within two telescopic tubes, of which one ispivotally connected with the shutter and the other is pivotallyconnected with a suitable fixed stud. The spring devices serve to keepthe closed shutter pressed against the angle irons 8 and to restore theshutter with the dustbin after the tilting operation. An elevator rope11 from a hydraulic jack 13 passes over a sheave 12 on the collectingcontainer and a sheave 10 pivoted on the upper edge of the shutter 5,from which it depends downwardly to the centre of a yoke 14. From eachend thereof a wire depends, and to the lower end of each wire a couplinghook 16 is fastened for engaging two handles 17 on opposite sides of thedustbin 18 required also for carrying the dustbin by two men. Thehandles 17 are made of a piece of round iron bent into U-form withflattened out ends, of which one end is bent downwards and the other endis bent upwards. The coupling hook 16 is in principle also in the formof a U, but one end porof the bin when the bin engages the shutter.

handle 17, whereas the other end portion is bent horizontally outwardsand forms together withthe horizontal'rod welded to the coupling hook 16a fork embracing the othershank of the handle 17. The coupling member 16may be disengaged by passing it downwards through the handle and tiltingit to such a position that it can pass upwards through the handle17.

V In order to prevent the pressure from the rope 11 on the sheave 10from swinging the shutter 5 inwards before the dustbin has engaged theopening in the shutter a locking device 9 is provided. This lockingdevice comprises a hook 24 pivoted between two studs 25 welded to thebackside of the shutter, and the hook passes through an opening 26 andengages a pin 27 secured to the angle iron 8. A rod 28 is welded at oneend to the upper edge of the hook 24 and is'bent in such a way thattheother end 29 passes through the discharge opening 30 in the shutterat a point, where the end 29 is pressed downwards .by the projectingflange around the mouth The hook 24 will thereby be swung upwardsand'releasedfrom the pin 27. In order to normally keep the hook 24 inits lockingposition the flat spring 31 is secured 'at its oneend..to;thej backside 'of the shutter, whereas its-other end restsagainst the rod 28 from below.

To the hood and the conveyorscrew casing 3 a substantially verticalsliding chute 19 of sheet metal with upwardly bent edges is fixed. Thedustbin 18 is provided with coupling members consisting of two parallellugs 20 connected by a coupling rod 21 having its middle portion bentinwards and welded to the wall of the dustbin. A reinforcement andwearing lining 22 welded to the wall extends from the top to the bottomthereof.

The described hoisting device operates in the following manner. Thedustbin to be emptied is placed on the ground preferably in the positionshown by full lines in Figure 1, and the coupling hooks 16 areintroduced into the handles 17 of the bin. When the jack 13 is startedthe bin is lifted by the rope 11 and slides in the chute 19 with thelining 22 and the lugs 20 within the chute guided by the upright edgesthereof. At the completion of this sliding motion the both end portionsof the coupling rod 21 on the bin are introduced from below each intoone of two downwardly open coupling hooks 23 fixed on the shutter 5, andat continued pull in the rope 11 the bin turns around the hooks 23 untilthe mouth of the bin is introduced into the corresponding opening in theshutter and a projecting flange of an angle iron around the orifice ofthe bin bears against the shutter. Until now the shutter has been lockedby the catch device 9, but when the said flange strikes a projectionfrom the catch device the latter is raised against the action of aspring and the shutter is released. The bin has now reached the position18a.

The both portions of the rope 11 on each side of the sheave 10 haveformed such an angle to each other that an advantageous direction of thepulling power acting on the bin is obtained. When the bin hereafter istipped to the discharge position indicated 18b the sheave 10 at firstaccompanies the rope 11 but proceeds thereafter free of the rope, thedirection of which now is determined by the sheave 12.

When the jack after the discharge moves back, the compressed springs 7exert a sufficient pressure on the shutter to turn the same and the binbeyond the dead 2,932,417 t V p device is very simple. A specialadvantage is that the charged dustbin can be lifted directly from theground, and it must not be fitted snugly in the position shown in Figurel, as it can be guided by the operator into the correct sliding positioneither from the ground 'or di-' rectly from a small cart fortransportation.

What I claim is: l

I. A refuse collecting device, comprising 'a vehicle with a refusecollecting container, a separate dustbin with two opposite handles onits side wall forcarrying the dustbin, an emptying hood on saidcontainer, a front shutter in said hood pivoted at its lower edge andhaving a discharge opening to be engaged by the mouth portion of thedustbin, two coupling hooks on the lower portionof the shutter whichhooks are op'en'downwa'rds for receiving corresponding coupling members'on the upper portion of the dustbin when raised, a chute on the vehiclebearing directly against the dustbin and allowing the dustbin to slidefreely thereon, a rope hoisting device with two coupling hooks engagingsaid handles for lifting the dustbin along said chute and for couplingthe dustbin with the shutter and tilting the dustbin together with theshut-ter for discharge of the refuse, a hoisting rope, and a sheave forsaid hoisting rope pivoted on the upper. portion of the shutter.

2. A refuse collecting device, comprising avehicle with a refusecollecting container, a dustbin, an emptying hood on said container, afront shutter in said hood being pivoted at its lower edge and having adischarge opening to be engaged by the mouth portion of the dustbin,downwardly open coupling members on said shutter engaging correspondingcoupling members on the dustbin during the discharge operation, twoopposite lugs on the dustbin wall, a sliding chute for the dustbin, anda hoisting device with coupling hooks engaging said lugs for lifting thedustbin along said sliding chute, connecting thereafter the couplingmembers of the dustbin and the shutter and tilting the dustbin with theshutter for discharge References Cited in the file of this patent UNITEDSTATES PATENTS 1,334,002 Sussis Mar. 16, 1920 1,715,364 Hirschner June4, 1929 2,522,441 Galloway et a1 Sept. 12, 1950 FOREIGN PATENTSSwitzerland ...c Aug. 1, 1951

